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Sony TX20 vs Sony A33

Portability
96
Imaging
39
Features
50
Overall
43
Sony Cyber-shot DSC-TX20 front
 
Sony SLT-A33 front
Portability
67
Imaging
54
Features
80
Overall
64

Sony TX20 vs Sony A33 Key Specs

Sony TX20
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 125 - 3200
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F3.5-4.6) lens
  • 133g - 96 x 56 x 18mm
  • Launched February 2012
Sony A33
(Full Review)
  • 14MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 12800 (Bump to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 500g - 124 x 92 x 85mm
  • Released August 2010
  • New Model is Sony A35
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Sony TX20 vs Sony A33 Overview

Following is a thorough analysis of the Sony TX20 versus Sony A33, one is a Ultracompact and the other is a Entry-Level DSLR and they are both built by Sony. The sensor resolution of the TX20 (16MP) and the A33 (14MP) is fairly well matched but the TX20 (1/2.3") and A33 (APS-C) possess totally different sensor measurements.

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The TX20 was announced 19 months after the A33 making the cameras a generation away from each other. Both of the cameras offer different body type with the Sony TX20 being a Ultracompact camera and the Sony A33 being a Compact SLR camera.

Before we go in to a full comparison, below is a quick introduction of how the TX20 grades vs the A33 in regards to portability, imaging, features and an overall score.

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Reasons to pick Sony TX20 over the Sony A33

 TX20 A33 
ReleasedFebruary 2012August 2010More modern by 19 months
Display resolution922k921kCrisper display (+1k dot)
Touch friendly display Easily navigate

Reasons to pick Sony A33 over the Sony TX20

 A33 TX20 
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen Easy selfies

Common features in the Sony TX20 and Sony A33

 TX20 A33 
Focus manually Dial exact focus
Display sizing3"3"Equivalent display measurements

Sony TX20 vs Sony A33 Physical Comparison

In case you're planning to carry around your camera often, you should consider its weight and proportions. The Sony TX20 provides physical measurements of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") along with a weight of 133 grams (0.29 lbs) while the Sony A33 has measurements of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs).

Check out the Sony TX20 versus Sony A33 in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will differ depending on the lens you choose during that time. The following is the front view dimensions comparison of the TX20 compared to the A33.

Sony TX20 vs Sony A33 size comparison

Considering size and weight, the portability score of the TX20 and A33 is 96 and 67 respectively.

Sony TX20 vs Sony A33 top view buttons comparison

Sony TX20 vs Sony A33 Sensor Comparison

Oftentimes, it is very difficult to envision the contrast between sensor sizes purely by looking at a spec sheet. The pic below may give you a stronger sense of the sensor measurements in the TX20 and A33.

As you can see, both of these cameras enjoy different resolutions and different sensor sizes. The TX20 using its tinier sensor will make getting shallower depth of field more challenging and the Sony TX20 will resolve extra detail with its extra 2 Megapixels. Greater resolution can also help you crop photos far more aggressively. The younger TX20 is going to have an edge with regard to sensor technology.

Sony TX20 vs Sony A33 sensor size comparison

Sony TX20 vs Sony A33 Screen and ViewFinder

Sony TX20 vs Sony A33 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony TX20 Portrait photography highlights
Sony A33 Portrait photography highlights
40
focusing manually
sensor resolution is decent (16 megapixels)
has face detection focus
no manual control
can't use external flash
tiny sensor size (1/2.3")
lacks RAW files
72
you can focus manually
decent MP (14MP)
good sensor size (APS-C)
has face detection focus
delivers RAW files
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Street Comparison

Sony TX20 as a Street photography camera
Sony A33 as a Street photography camera
67
has image stabilization (Optical)
offers touch focus
weather proofing
fixed screen
tiny sensor size (1/2.3")
lacks RAW files
76
screen articulates fully
has image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
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Sports Comparison

Sports photography with Sony TX20
Sports photography with Sony A33
50
has image stabilization (Optical)
sensor resolution is decent (16 megapixels)
has tracking autofocus
weather proofing
good battery (250 shots)
no shutter priority
tiny sensor size (1/2.3")
lacks phase detect auto focus
67
has image stabilization (Sensor based)
decent MP (14 megapixels)
good sensor size (APS-C)
has phase detect auto focus
low battery life (340 CIPA)
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Travel Comparison

Travel photography with Sony TX20
Travel photography with Sony A33
72
good battery (250 per charge)
weather proofing
offers touch focus
sensor resolution is decent (16MP)
built-in flash
pretty wide (25mm)
does not have Time Lapse recording
screen is not selfie friendly
sluggish max aperture (f3.5)
61
decent MP (14 megapixels)
flash built-in
selfie friendly display
doesn't have Time Lapse mode
low battery life (340 CIPA)
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Landscape Comparison

Sony TX20 Landscape photography factors
Sony A33 Landscape photography factors
52
focusing manually
pretty wide (25mm)
nice screen size (3 inch)
has image stabilization (Optical)
sensor resolution is decent (16 megapixels)
weather proofing
good battery (250 per charge)
can't swap lenses (fixed lens mount)
sluggish max aperture (f3.5)
no manual control
tiny sensor size (1/2.3")
lacks RAW files
does not have Time Lapse recording
67
you can focus manually
change lenses (Sony/Minolta Alpha mount)
decent sized screen (3")
has image stabilization (Sensor based)
decent MP (14 megapixels)
good sensor size (APS-C)
delivers RAW files
low battery life (340 CIPA)
doesn't have Time Lapse mode
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Vlogging Comparison

Sony TX20 Vlogging information
Sony A33 Vlogging information
35
pretty wide (25mm)
touchscreen enabled
has image stabilization (Optical)
has face detection focus
high quality video (1920 x 1080 pxls)
sluggish max aperture (f3.5)
screen is not selfie friendly
does not have external mic jack
77
selfie friendly display
has image stabilization (Sensor based)
has face detection focus
high quality video (1920 x 1080 resolution)
has external mic jack
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Sony TX20 vs Sony A33 Specifications

Detailed spec comparison table for Sony TX20 and Sony A33
 Sony Cyber-shot DSC-TX20Sony SLT-A33
General Information
Manufacturer Sony Sony
Model Sony Cyber-shot DSC-TX20 Sony SLT-A33
Class Ultracompact Entry-Level DSLR
Launched 2012-02-28 2010-08-24
Body design Ultracompact Compact SLR
Sensor Information
Chip BIONZ Bionz
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 23.5 x 15.6mm
Sensor area 28.1mm² 366.6mm²
Sensor resolution 16 megapixel 14 megapixel
Anti aliasing filter
Aspect ratio 4:3 and 16:9 3:2 and 16:9
Max resolution 4608 x 3456 4592 x 3056
Max native ISO 3200 12800
Max enhanced ISO - 25600
Lowest native ISO 125 100
RAW images
Autofocusing
Manual focus
Touch to focus
Continuous AF
AF single
Tracking AF
Selective AF
Center weighted AF
AF multi area
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points - 15
Cross focus points - 3
Lens
Lens mount fixed lens Sony/Minolta Alpha
Lens focal range 25-100mm (4.0x) -
Maximum aperture f/3.5-4.6 -
Macro focus range 1cm -
Amount of lenses - 143
Crop factor 5.8 1.5
Screen
Range of screen Fixed Type Fully Articulated
Screen diagonal 3" 3"
Resolution of screen 922 thousand dot 921 thousand dot
Selfie friendly
Liveview
Touch friendly
Screen technology XtraFine TruBlack TFT LCD -
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 1,150 thousand dot
Viewfinder coverage - 100%
Viewfinder magnification - 0.73x
Features
Minimum shutter speed 4s 30s
Fastest shutter speed 1/1600s 1/4000s
Continuous shutter speed 10.0 frames per second 7.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Custom WB
Image stabilization
Built-in flash
Flash range 3.70 m 10.00 m (@ ISO 100)
Flash options Auto, On, Off, Slow Sync Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
Auto exposure bracketing
White balance bracketing
Fastest flash sync - 1/160s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60 fps), 1440 x 1080 (60, 30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Max video resolution 1920x1080 1920x1080
Video file format MPEG-4, AVCHD MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless Eye-Fi Connected Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 133 grams (0.29 lbs) 500 grams (1.10 lbs)
Dimensions 96 x 56 x 18mm (3.8" x 2.2" x 0.7") 124 x 92 x 85mm (4.9" x 3.6" x 3.3")
DXO scores
DXO Overall score not tested 70
DXO Color Depth score not tested 22.8
DXO Dynamic range score not tested 12.6
DXO Low light score not tested 591
Other
Battery life 250 photographs 340 photographs
Battery format Battery Pack Battery Pack
Battery model NP-BN NP-FW50
Self timer Yes (2 or 10 sec, Portrait 1/2) Yes (2 or 10 sec)
Time lapse shooting
Storage media SD/SDHC/SDXC/Memory Stick Duo/Memory Stick Pro Duo, Memory Stick Pro-HG Duo SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots One One
Cost at release $330 $230